Bacterial composition of microbial mats in hot springs in Northern Patagonia: variations with seasons and temperature

Bacterial composition of microbial mats in hot springs in Northern Patagonia: variations with seasons and temperature

14 pages, 8 figures, 1 table

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Bibliographic Details
Main Authors: Mackenzie, Roy, Pedrós-Alió, Carlos, Díez, Beatriz
Format: artículo biblioteca
Language:English
Published: Springer 2013-01
Subjects:Hot spring, Northern Patagonia, DGGE fingerprint, Microbial mat, Bacterial diversity, DGGE,
Online Access:http://hdl.handle.net/10261/77852
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spelling dig-icm-es-10261-778522020-12-01T09:45:20Z Bacterial composition of microbial mats in hot springs in Northern Patagonia: variations with seasons and temperature Mackenzie, Roy Pedrós-Alió, Carlos Díez, Beatriz Hot spring Northern Patagonia DGGE fingerprint Microbial mat Bacterial diversity DGGE 14 pages, 8 figures, 1 table Seasonal shifts in bacterial diversity of microbial mats were analyzed in three hot springs (39–68 °C) of Patagonia, using culture-independent methods. Three major bacterial groups were detected in all springs: Phyla Cyanobacteria and Bacteroidetes, and Order Thermales. Proteobacteria, Acidobacteria and Green Non-Sulfur Bacteria were also detected in small amounts and only in some samples. Thermophilic filamentous heterocyst-containing Mastigocladus were dominant Cyanobacteria in Porcelana Hot Spring and Geyser, and Calothrix in Cahuelmó, followed by the filamentous non-heterocyst Leptolyngbya and Oscillatoria. Bacteroidetes were detected in a wide temperature range and their relative abundance increased with decreasing temperature in almost all samples. Two Meiothermus populations with different temperature optima were found. Overall, fingerprinting analysis with universal bacterial primers showed high similarities within each hot spring despite differences in temperature. On the other hand, Cahuelmó Hot Spring showed a lower resemblance among samples. Porcelana Hot Spring and Porcelana Geyser were rather similar to each other, possibly due to a common geological substrate given their geographic proximity. This was even more evident with specific cyanobacterial primers. The different geological substrate and the seawater influence in Cahuelmó might have caused the differences in the microbial community structure with the other two hot springs The authors are thankful for the sponsorship given by Fundacio´n Huinay (Huinay Scientific Field Station) and their staff, who made possible the visits to the hot springs. We thank Boris Hernández for guiding us to Porcelana Geyser. This is the publication number 63 of Fundación Huinay. Special thanks to Rosa Soto and Vannesa Balagué. This work was supported by the project TERMOCHILE (CGL2009-06449-E/BOS), Spanish Ministry of Science and Innovation, and project FONDECYT n8 1110696 funded by CONICYT, Chile Peer reviewed 2013-06-10T07:56:33Z 2013-06-10T07:56:33Z 2013-01 artículo http://purl.org/coar/resource_type/c_6501 Extremophiles 17(1): 123-136 (2013) 1431-0651 http://hdl.handle.net/10261/77852 10.1007/s00792-012-0499-z 1433-4909 en https://doi.org/10.1007/s00792-012-0499-z none Springer
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Hot spring
Northern Patagonia
DGGE fingerprint
Microbial mat
Bacterial diversity
DGGE
Hot spring
Northern Patagonia
DGGE fingerprint
Microbial mat
Bacterial diversity
DGGE
spellingShingle Hot spring
Northern Patagonia
DGGE fingerprint
Microbial mat
Bacterial diversity
DGGE
Hot spring
Northern Patagonia
DGGE fingerprint
Microbial mat
Bacterial diversity
DGGE
Mackenzie, Roy
Pedrós-Alió, Carlos
Díez, Beatriz
Bacterial composition of microbial mats in hot springs in Northern Patagonia: variations with seasons and temperature
description 14 pages, 8 figures, 1 table
format artículo
topic_facet Hot spring
Northern Patagonia
DGGE fingerprint
Microbial mat
Bacterial diversity
DGGE
author Mackenzie, Roy
Pedrós-Alió, Carlos
Díez, Beatriz
author_facet Mackenzie, Roy
Pedrós-Alió, Carlos
Díez, Beatriz
author_sort Mackenzie, Roy
title Bacterial composition of microbial mats in hot springs in Northern Patagonia: variations with seasons and temperature
title_short Bacterial composition of microbial mats in hot springs in Northern Patagonia: variations with seasons and temperature
title_full Bacterial composition of microbial mats in hot springs in Northern Patagonia: variations with seasons and temperature
title_fullStr Bacterial composition of microbial mats in hot springs in Northern Patagonia: variations with seasons and temperature
title_full_unstemmed Bacterial composition of microbial mats in hot springs in Northern Patagonia: variations with seasons and temperature
title_sort bacterial composition of microbial mats in hot springs in northern patagonia: variations with seasons and temperature
publisher Springer
publishDate 2013-01
url http://hdl.handle.net/10261/77852
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AT pedrosaliocarlos bacterialcompositionofmicrobialmatsinhotspringsinnorthernpatagoniavariationswithseasonsandtemperature
AT diezbeatriz bacterialcompositionofmicrobialmatsinhotspringsinnorthernpatagoniavariationswithseasonsandtemperature
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